I want to crop the image with point coordinates(like polygon), how can I do this?

this is my image mapping tool i selected wheels here with polygon selection;

it gives me the coordinates of the points i choose like this;

<map name="araba.jpg" id="araba.jpg">
    <area shape="poly" coords="528,195,540,181,545,180,554,187,555,190,556,195,559,202,559,208,560,215,561,217,561,221,561,227,561,233,560,238,560,241,559,245,555,250,553,254,550,258,547,260,541,262,538,262,530,258,526,253,522,239,518,220,520,215,520,211,528,195" nohref alt=""  />
    <area shape="poly" coords="360,232,365,258,361,275,355,287,345,295,332,303,319,304,306,296,295,283,289,266,288,248,292,226,301,211,312,206,326,199,343,201,350,211,360,232" nohref alt=""  />
</map>

I want to crop the picture of the wheel with these coordinates, how can i do that ?

thanks.